Strike mechanism stops clock

[David Robson]

My grandfather clock has developed the fault of occasionally stopping when the minute hand hits twelve. I believe this is because it is being blocked in some way by the strike mechanism. I don't know enough about this to see how I can fix it. Can anyone help?

[RustyHinge]

Post by David Robson
My grandfather clock has developed the fault of occasionally stopping when the minute hand hits twelve. I believe this is because it is being blocked in some way by the strike mechanism. I don't know enough about this to see how I can fix it. Can anyone help?

This is only a guess: some triggers for setting-off strike or chimes
work on a ramp (often in the form of a rotating 'snail')

If the lubrication of this becomes dry it works against a ramp of
resistance - usually not extreme - and could, especially if the surfaces
are worn, catch at similar points during the hour.

To oil such parts, get a small feather and separate the lateral elements
and remove one of them. Oil this with a good quality light oil - I use
Parker Hale Express Oil, intended for gun mechanisms (among other
things), and contains an antoxidant which prevents oxidation (thus
thickening to stickiness).

Remove any excessive 'wetting' of the strand by absorbing it on tissue.